Sorry to get off topic on the 91mm crank, but wondering if there are any updates about the 6sp swap?
Also, with the 6sp swap, I tried searching to see if it's been asked before, but couldn't find anything. Does anyone know if the Spec V axles and B14 axles are the same length, and if they have the same inner tripod? If yes to both, wouldn't you just be able to use the inner section of the Spec V axle that splines in the tranny, then mate the B14 axle at the inner tripod? If that would work, you wouldn't have to swap the hubs. I'm just not sure if it would work or not.